Adjustable bracket.



J. KNAPE.

' ADJUSTABLE BRACKET.

APPLICATION FILED NOV. 14, 1910.

1,008,720. Patented Nov. 14, 1911.

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JOHN KNAPE, OF GRAND RAPIDS, MICHIGAN.

ADJUSTABLE BRACKET.

Specification of Letters Patent.

PatentedNov. 14, 1911.

Application filed November 14, 1910. Serial No. 592,277.

To all whom it may concern:

Be it known that I, JOHN KNAPE, a citizen of the United States of America, residing at Grand Rapids, in the county of Kent and State of Michigan, have invented certam new and useful Improvements in Ad ustable Brackets; and I do hereby declare the following to be a full, clear, and exact descrip tion of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. 0

My invention relates to improvements in adjustable brackets, and its object 1s to provide a simple, cheap, and efiective device having various novel features, hereinafter more fully described and particularly pomted out in the claims.

My improved bracket consists essentially of a channel bar adapted to be fixed in upright position and provided with openings at regular intervals, said openings being substantially rectangular; a supporting member consisting of a fiat bar arranged horizontal and projecting at right angles to the channel bar provided at its inner end with shoulders to engage the face of the channel bar, and a narrower upturned end to pro- I ject through the upper part of one of the said openings and engage the inner surface of the channel bar; an inclined resilient brace bar secured to the horizontal bar at its outer end and having its inner end provided with shoulders to engage the outer face of the channel bar; an inwardly projecting and downwardly turned end to extend through the lower part of one of said openings and engage the inner surface of the channel bar,

and a slide on the brace bar to lock the same" of the channel bar with a bracket attached thereto; Fig. 5 an enlarged detail showing a horizontal section on the line 5 5 of Fig. 4; Fig. 6 the same on the line.66 of Fig. 4; and Fig. 7 an enlarged detail in section.

Like numbers refer to like parts in all of the figures.

1 represents a channel bar preferably formed of sheet metal with its edges folded at right angles to the middle portion.

2 1s "a horizontally disposed flat strip of metal of substantially uniform width and having an upturned outer end 2 to retain a shelf or other article thereon, as occasion may require. The inner end of this horizontal bar is reduced in width to form shoulders 7 to engage the outer surface of the channel bar and extending inward through an opening 5 in the channel bar and thence turned upward as at 6 to engage the inner surface of the same. When the bar 2 is horizontal, the upturned end 6 and the shoulders 7 oppositely engage the respec-' tive inner and outer surfaces of the channel bar and securely hold the bar 2 from detachment or longitudinal movement. The brace bar 3 is rigidly secured at its outer end by a rivet 4 to the underside of the bar '2 and is pressed into a depression 9 in the bar 2 as at 9* to prevent turningabout the rivet and also extends diagonally downwardv to the channel bar 1 and is of such length that when its inner end is engaged with one of the openings 5 therein, the bar 2 will be held horizontal by the brace bar. The inner .end of this brace bar is reduced in width downward and engages the inner surface of the channel bar. The downward extension 6 is short enough so that when the brace bar is sprung upward close to the upper side of the openlng. 5, this extension will pass freely through the opening, and the resilience of the brace bar 3 is such that it will be yieldingly held engaged with the bottom of the opening, and thus will not ordinarily become detached except when manually sprung toward the bar 2. To further secure the bracket in place, it is effectually locked by a and 3 in planes substantiall at right angles to the plane of the midd e portlon, the portion 3 furnishing the necessary resilience. I also prefer to make the openings 5 wider in the upper part to receive the extension 6 and the lower part of the opening 5 narrower and the extension 6 narrower than the extension 6, whereby shoulders are formed in the opening 5 to. support the inner end of the bar 2 and prevent it from moving down under the load thereon, whereby the extension 6 can be made short and there will be butlittle, if any, vertical movement to the bar 2 in the o ning.

The device is readi y attached or detached by first moving the slide 8 up on the brace I bar, then springing the bars 2 and 3 toward each'other sufiicient to permit the projection 6 to pass through the opening 5, t en turning the bracket u ward to bring. the extension 6 substantia ly horizontal when it can be removed through the opening 5. Obvi-' ously reversing the operatlon, will serve to attach the bracket to the channel bar.

This structure is very cheap and easy of construction, being easily made of ,sheet metal requiringbut a single rivet and very littledie work, and is also strong and reliable in operation.

What I claim is z 1. An adjustable bracket, comprising a vertically dlsposed channel bar having rectangular recesses at intervals, said recesses havm narrower lower portions forming shoul ers in the recesses, a supporting bar having its end reduced to enter the wider part of said openings and its end turned upward, a brace bar attached to the supporting bar at the outer end and having its inner end reduced to enter the narrower portion of said openings and said end turned downward, said supporting bar also being supported on said shoulders and said brace bar resting in the lower part of an opening.

2. A bracket, comprising a channel bar having openings at intervals, a supporting bar and a brace bar attached to each otherand having ends adapted to enter said openings and enga e the inner surface of the a channeil bar,d an a slide on the brace bar having a ug a apted to enter an o enmg' and lock thebraoe bar therein. p

In testimon whereof I aflix my signature in presence 0 two witnesses.

JOHN KNAPE.

'Witnesses:

PALMER A. J ONES: LUTHER V. Moumron. 

